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Blue Origin continues SpaceX-competitive rocket R&D with hot-fire engine tests
Prospective SpaceX-competitor Blue Origin is continuing research and development work in earnest in an effort to push its first orbital-class rocket, known as New Glenn, closer to the massive vehicle’s launch debut.
In early August, the company shared a video showing a small segment of a long-duration hot-fire test of the rocket engine that will power New Glenn’s second stage, the upper segment of the rocket tasked with placing payloads (typically satellites) into their final orbit(s).
Recent footage of BE-3U demonstration engine hot fire. Two BE-3Us will power upper stage of #NewGlenn & deliver our customers to orbit. We’ve completed over 700 seconds of test time & confirmed performance assumptions used for final BE-3U expander cycle design #GradatimFerociter pic.twitter.com/ygJlgHkyE1
— Blue Origin (@blueorigin) August 10, 2018
Blue Origin recently announced an intriguing decision to change the upper stage engine its New Glenn rocket will use, moving from a vacuum version of the booster’s massive BE-4 engine (BE-4U) to two updated and modified BE-3 engines, the same propulsion system that powers the company’s much smaller New Shepard suborbital rocket. Rated for roughly 110,000 pounds of thrust (compared to Merlin 1D’s ~190,000 lbf thrust), a duo of the vacuum-optimized engines would be expected to produce roughly the same amount of thrust as SpaceX’s Merlin Vacuum (MVac) upper stage engine.
Before BE-3U took its place, Blue’s original plan was to fly New Glenn as a full-up liquid methane and liquid oxygen (methalox0rocket) on both first and second stages, simplifying the vehicle’s fluid systems and the launch pad’s own ground systems. By replacing BE-4U with BE-3U, the company is instead choosing to make New Glenn’s first stage methalox while the second stage will use liquid hydrogen and oxygen (hydrolox).
- A likely dated mockup of New Glenn at the LC-36 launch pad. (Blue Origin)
- Blue Origin’s aspirational future, the highly reusable BE-4 powered New Glenn rocket. (Blue Origin)
- Blue Origin’s BE-4 engine, the propulsion for New Glenn, seen conducting hot-fire tests in Texas. The engine’s nozzles is a full 6 feet (~1.8m) in diameter. (Blue Origin)
- BE-3U seen testing at Blue Origin’s Texas facilities in August 2018. (Blue Origin)
Blue Origin certainly does have more experience flying hydrolox rockets thanks to its suborbital New Shepard program, and BE-3 is also a mature engine as a result. However, the decision is still difficult to parse. Critically, the company chose to significantly change a fundamental aspect of the rocket engine, moving from a combustion tap-off cycle to an expander cycle, where “cycle” refers to the mechanisms used to pump fuel and oxidizer into a rocket engine’s combustion chamber.
Changing cycles is a fairly dramatic revision and consequently diminishes the value of what might be called “flight-heritage” hardware, or rocket components that have been extensively tested and proven during actual flight operations. Noting one of the main points Blue Origin itself has made in the past and on its own website, it should come as no surprise that New Glenn’s launch debut is believed to have slipped from 2020 into 2021 or even 2022, originally reported by Reuters earlier this month.
“With extensive testing and use on New Shepard and the BE-3, the BE-3U will be one of the best-understood rocket engines before it ever launches into space [on New Glenn].” – Blue Origin
New Glenn’s debut delays will likely push Blue Origin’s first lunar Blue Moon landings beyond the original 2023 launch target. Regardless, a considerable amount of work thus lays before Blue Origin before they will be ready to seriously compete with the likes of SpaceX, Arianespace, and ULA on the global launch market.
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Tesla reveals its first Semi customer after launch
Tesla revealed its first customer for the all-electric Semi truck after it launches next year. Who it truly is should not be a surprise.
The Semi is going to finally start deliveries to new companies outside of Tesla’s pilot program starting in 2026. The company has been building a dedicated production facility in Reno, Nevada, that has finally taken shape, but Tesla was evidently not finished with the Semi’s development.
Last week at the Annual Shareholder Meeting, Tesla said it had implemented some new designs into the Semi, helping with efficiency, updating its design, and making it a more suitable vehicle for hauling loads, as the changes also helped increase payload.
Tesla has obtained a lengthy list of companies that have committed to implementing the Semi in their own fleets, hoping to bring their logistics lineups up to date with electric powertrains and autonomous technologies.
While it is already operating a pilot program with PepsiCo. and Frito-Lay, Tesla will expand to other businesses, primarily using it internally after its launch.
Head of the Semi program at Tesla, Dan Priestley, said the company would be the first user of the vehicle after its launch next year. It has been using it to a certain extent, but the company has not been able to completely abandon gas haulers.
Instead, it will implement the Semi into its fleet for more sustainable vehicle logistics starting next year:
Tesla will be the first customer as we electrify our supply chain. This includes Texas operations.
— Dan Priestley (@danWpriestley) November 7, 2025
Tesla has already received orders for the Semi from a variety of large companies, including Walmart, Sysco, Anheuser-Busch, UPS, DHL, J.B. Hunt, among others.
Many analysts see the Tesla Semi as a major contributor to future growth and increasing value within the company, especially from a Wall Street perspective. Some firms say the Semi is one of several near and medium-term contributors to the company increasing its market cap.
Cantor Fitzgerald is just one of those firms, as last week it explicitly listed the Semi as a catalyst.
Analyst Andres Sheppard said, “Overall, we remain bullish on TSLA over the medium to long term. We continue to see meaningful future upside from Energy Storage & Deployment, FSD, Robotaxis/Cybercab, Semis, and Optimus Bots.”
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Tesla China rolls out Model Y L V2L adapter, and it’s free for early owners
Tesla China announced the rollout of the Model Y L’s AC external power adapter on social media platforms such as Weibo.
Tesla China has released a useful new accessory for the Model Y L, and it is free for some owners. With the accessory, the Model Y L effectively becomes a giant power bank that owners can use to power appliances when they are camping, or if their homes are hit by a power outage.
Tesla Model Y L V2L adapter
Tesla China announced the rollout of the Model Y L’s AC external power adapter on social media platforms such as Weibo. As per the product’s advertisement, the Model Y L could provide up to 2,200W of power with its adapter, allowing it to support numerous appliances on the go. Of course, but could also be used to charge devices during power outages.
Tesla China notes that the adapter’s current is 220V, and it also features an IP44 protection grade. Tesla notes that the adapter could operate at temperatures between -30℃ ~ +50℃. The Model Y L’s V2L functionality would not work if the vehicle’s battery is less than 10%, however.
Tesla China’s official shop is selling its AC external power adapter for a reasonable price. The product could be purchased for RMB599, which is equivalent to $85. That’s a great price for an accessory that could make car camping sessions several times more convenient.
Free for early Model Y L owners
While the Model Y L’s AC external power adapter is priced reasonably at the Tesla China shop, the accessory is available for free for early owners of the extended wheelbase six-seat all-electric crossover. This was highlighted in a message that Tesla China reportedly sent to owners of the vehicle.
“Your Tesla account is eligible for a free Model Y L dedicated AC external power adapter. Please log in to the online store to add the adapter to your cart. Once the system verifies it correctly, the price will automatically change to 0 yuan before placing the order. We will send it to you via express delivery subsequently.
“This free qualification is only for the first owner of the Model YL who did not receive an AC external power adapter at pickup, valid until February 28, 2026. Failure to place an order upon expiration will be considered as a waiver of eligibility. If there is a temporary shortage of goods, please be patient and we will reschedule the replenishment by the end of January 2026,” Tesla China wrote.
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Tesla Cybertruck and Model 3 program manager steps down
The now-former executive played a central role in several of Tesla’s key milestones.
Siddhant Awasthi, Tesla’s Program Manager for the Cybertruck and Model 3, has announced his departure after eight years with the company. Starting as an intern, Awasthi played a central role in several of Tesla’s key milestones, from the ramp-up of the Model 3 and Giga Shanghai to the launch of the long-awaited Cybertruck.
From intern to program leader
In a social media post, Awasthi described leaving Tesla as “one of the hardest decisions” of his life. He credited CEO Elon Musk, Tesla’s leadership team, and his colleagues for helping turn ambitious ideas into tangible vehicles. During his tenure, Awasthi contributed to Tesla’s global expansion and the evolution of its vehicle electronics and wireless systems, culminating in the Cybertruck’s long-anticipated rollout in late 2023.
He noted the intensity and innovation of his Tesla years, calling the experience “a thrilling journey” that shaped his career before the age of 30. “It’s been an absolute privilege,” he wrote, adding that working with “rockstar colleagues” made even the most demanding days worthwhile.
Tesla’s leadership transitions
Awasthi’s departure comes as Tesla continues to scale global operations and prepare for major product updates, including next-gen vehicle platforms and software-driven improvements. Despite stepping away, Awasthi voiced confidence in Tesla’s future. “I’m confident Tesla will nail its next big mission,” he said, highlighting his belief in the company’s capacity to deliver breakthrough products and improve safety for drivers worldwide.
“This decision wasn’t easy, especially with so much exciting growth on the horizon. Tesla vehicles are incredibly complex systems that often don’t get the credit they deserve, but I’ve witnessed firsthand how they’ve changed lives—for our customers, my friends, and my family—adding real value and, above all, improving safety. I’m confident Tesla will nail its next big mission (especially after last week), and I’m truly excited for the next chapter of my life,” the former Tesla executive wrote.
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